Grant Allocation Scheme with Void Filling Principle in the Multi-thread Polling based DBA Algorithm for the LR-PON System

Monjur-Ul-Ahsan, M.; Saha, Shuvashis; Hossen, Monir

doi:10.1109/ecace.2019.8679417

Cited by 2 publications

(3 citation statements)

References 11 publications

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“…The proposed algorithm utilizes a scheduling policy that assigns weight vectors to ONUs based on their distance from the OLT, sorting them accordingly without penalizing any ONU due to their distance. To reduce the impact of large propagation delay, the authors in [23] proposed a new grant allocation scheme with void filling principle to utilize the void period by pre-granting extra window sizes to the heavily loaded ONUs. These studies have reduced the bandwidth waste caused by ONU propagation delays, and can contribute to the development of low-latency 10G-EPONs.…”

Section: Oltmentioning

confidence: 99%

Bandwidth Prediction Based Resource Allocation Scheme for Low-Latency and Energy-Efficient PONs With Heterogeneous ONU Propagation Delays

Li,

Lv,

2024

IEEE Photonics J.

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To achieve low-latency and energy-efficient in a 10Gbps Ethernet Passive Optical Network (10G-EPON) having heterogeneous Optical Network Unit (ONU) propagation delays, this paper proposes a resource allocation scheme based on bandwidth requirements prediction and ONU polling sequence scheduling. By (a) predicting the upstream (US) and downstream (DS) bandwidth requirements of each ONU using Long Short-Term Memory (LSTM) networks and (b) arranging the ONU polling sequence and the US and DS transmission start times of each ONU based on the predicted bandwidth requirements and the ONU propagation delays, the proposed scheme minimizes bandwidth waste of the network as well as the overall operating time of each ONU. Therefore, low-latency performance is achieved, and the energy consumption of ONUs is reduced as ONU sleeping time is extended. Simulation results indicate that the proposed scheme reduces network latency and improves energy efficiency effectively. Compared to the conventional Interleaved Polling with Adaptive Cycle Time scheme that adopts the shortest propagation delay first rule and ONU doze mode, the proposed scheme can reduce the average one-way packet delay by at least 28.9%, and can reduce the per bit energy consumption by 73.7% when concerning data transmitted under the 1ms latency constraint.

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Section: Oltmentioning

confidence: 99%

Bandwidth Prediction Based Resource Allocation Scheme for Low-Latency and Energy-Efficient PONs With Heterogeneous ONU Propagation Delays

Li,

Lv,

2024

IEEE Photonics J.

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“…Many PON DBA algorithms have been proposed, such as in [3,[10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27], but there were only a few articles on GPON FSAN-compliant DBA algorithms which have been physically implemented, named as GigaPON access network (GIANT), immediate allocation colourless grant (IACG) and efficient bandwidth utilization (EBU) algorithms. GIANT [3] is the first physically implemented DBA algorithm which introduced a down counter for bandwidth allocation.…”

Section: Related Work On Dba Algorithmsmentioning

confidence: 99%

“…Thus, in this study, the SI is improved to cover longer distance of an LR-PON, concerning the least mean delay during bandwidth allocation process among traffic transmission containers (T-CONTs). There are also other works on LR-PON which focuses on polling and scheduling algorithm such as in [14,21,27,[30][31][32][33][34] but most of them are on E-PON and some are not GPON-FSAN compliant.…”

Section: Related Work On Dba Algorithmsmentioning

confidence: 99%

Dynamic bandwidth allocation algorithm for long reach passive optical network

2021

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Next generation broadband access networks are gaining more interests from many key players in this field. The demands for longer reach and higher bandwidth are among the driving factors for such network as it can reach wider area up to 100 km, even beyond; has enhanced bandwidth capacity and transmission speed, but with low cost and energy consumption. One promising candidate is long reach passive optical network, a simplified network with reduced number of network elements, equipment interfaces, and even nodes; which leads to a significant reduction in the network's capital expenditure and operational expenditure. Outcome of an extended reach often results in increased propagation delay of dynamic bandwidth allocation messages exchange between the optical line terminals and optical network units, leading to the degradations of bandwidth allocation and quality of service support. Therefore, an effective bandwidth allocation algorithm with appropriate service interval setup for a long reach network is proposed to ensure the delay is maintained under ITU-T G.987.1 standard requirement. An existing algorithm is improved in terms of service interval so that it can perform well beyond 100 km. Findings show that the improved algorithm can reduce the mean delay of high priority traffic classes for distance up to 140 km.

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Grant Allocation Scheme with Void Filling Principle in the Multi-thread Polling based DBA Algorithm for the LR-PON System

Cited by 2 publications

References 11 publications

Bandwidth Prediction Based Resource Allocation Scheme for Low-Latency and Energy-Efficient PONs With Heterogeneous ONU Propagation Delays

Bandwidth Prediction Based Resource Allocation Scheme for Low-Latency and Energy-Efficient PONs With Heterogeneous ONU Propagation Delays

Dynamic bandwidth allocation algorithm for long reach passive optical network

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